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RFC 1902 - 7.1.1. Integer32 and INTEGER

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### 7.1.1. Integer32 and INTEGER

The Integer32 type represents integer-valued information between -2^31 and 2^31-1 inclusive (-2147483648 to 2147483647 decimal). This type is indistinguishable from the INTEGER type. Both the INTEGER and Integer32 types may be sub-typed to be more constrained than the Integer32 type.

The INTEGER type may also be used to represent integer-valued information as named-number enumerations. In this case, only those named-numbers so enumerated may be present as a value. Note that although it is recommended that enumerated values start at 1 and be numbered contiguously, any valid value for Integer32 is allowed for an enumerated value and, further, enumerated values needn't be contiguously assigned.

Finally, a label for a named-number enumeration must consist of one or more letters or digits (no hyphens), up to a maximum of 64 characters, and the initial character must be a lower-case letter. (However, labels longer than 32 characters are not recommended.)

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Connected: An Internet Encyclopedia
RFC 1902 - 7.1.1. Integer32 and INTEGER